[sr-dev] [kamailio/kamailio] ims_registrar_pcscf,ims_qos: support for trusting bottom via (PR #3901)

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The current code is using a mix of that, plus using Contact and Via headers, with arguable potential security issues. This patch adds a new parameter to `ims_registrar_pcscf` and `ims_qos` modules, allowing for an optional outsource of the IPsec functionality to another element, which is also in charge of checking/enforcing correct UE Via header. The existing code is allowed to work as before, with the default value of the flag being towards that. List of functional changes: - `ims_qos` - added `trust_bottom_via` parameter - used it on `w_rx_aar_register()` - `ims_registrar_pcscf` - added `trust_bottom_via` parameter - used it on `update_contacts()`, `save_pending()`, `check_contact()`, `getContactP()`, `check_service_routes()`, `enforce_service_routes()` - made `ims_ipsec_pcscf` dependency optional, with checks when used - skipped checks of `port-uc` in `checkcontact()` if the `ims_ipsec_pcscf` module was not loaded - added `ignore_contact_rxproto_check` parameter - IMS devices open IPsec Security Associations just between IPs and ports, with both UDP and TCP protocols allowed. The default then was set here to always ignore protocol checks. Before, the `ignore_contact_rxport_check` was used to skip this and still make it work, but that seemed like a typo/mistake with hidden effects. List of indirect changes: - `core/ut.h`: added a `str2ushort()` macro, since code was using some dangerous casting and macros with a larger type - `ims_registrar_pcscf`: added `Route` headers in `SUBSCRIBE` to `reginfo`, with values from `Service-Route`s, as per 3GPP specs. - `ims_usrloc_pcscf`: small log fixes You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/3901 -- Commit Summary -- * core: added str2ushort() to avoid some questionable casting in ims_qos * lib/ims: fixed a typo in a log message * ims_usrloc_pcscf: small log fixes * ims_qos: added trust_bottom_via parameter * ims_registrar_pcscf: added trust_bottom_via parameter, added ignore_contact_rxproto_check, fixes for logging, fixes for SUBSCRIBE to reginfo for including Service-Route, allow use without ims_ipsec_pcscf -- File Changes -- M src/core/ut.h (8) M src/lib/ims/ims_getters.c (2) M src/modules/ims_qos/doc/ims_qos.xml (6) M src/modules/ims_qos/doc/ims_qos_admin.xml (41) M src/modules/ims_qos/ims_qos_mod.c (27) M src/modules/ims_qos/rx_aar.h (4) M src/modules/ims_qos/rx_authdata.h (2) M src/modules/ims_qos/rx_avp.c (2) M src/modules/ims_registrar_pcscf/doc/ims_registrar_pcscf.xml (6) M src/modules/ims_registrar_pcscf/doc/ims_registrar_pcscf_admin.xml (73) M src/modules/ims_registrar_pcscf/ims_registrar_pcscf_mod.c (26) M src/modules/ims_registrar_pcscf/notify.c (2) M src/modules/ims_registrar_pcscf/save.c (80) M src/modules/ims_registrar_pcscf/service_routes.c (136) M src/modules/ims_registrar_pcscf/subscribe.c (74) M src/modules/ims_registrar_pcscf/subscribe.h (4) M src/modules/ims_usrloc_pcscf/udomain.c (4) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3901.patch https://github.com/kamailio/kamailio/pull/3901.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3901 You are receiving this because you are subscribed to this thread. 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